20768726 has 16 divisors (see below), whose sum is σ = 34077888. Its totient is φ = 9414600.

The previous prime is 20768717. The next prime is 20768753. The reversal of 20768726 is 62786702.

It is a self number, because there is not a number n which added to its sum of digits gives 20768726.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8681 + ... + 10811.

It is an arithmetic number, because the mean of its divisors is an integer number (2129868).

Almost surely, 2^20768726 is an apocalyptic number.

20768726 is a deficient number, since it is larger than the sum of its proper divisors (13309162).

20768726 is a wasteful number, since it uses less digits than its factorization.

20768726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 20768726 is about 4557.2717715756. The cubic root of 20768726 is about 274.8758712523.

The spelling of 20768726 in words is "twenty million, seven hundred sixty-eight thousand, seven hundred twenty-six".